1 files changed, 101 insertions, 0 deletions
diff --git a/src/lib/gssapi/krb5/set_ccache.c b/src/lib/gssapi/krb5/set_ccache.c
new file mode 100644
index 000000000000..8acf3ec90cde
--- /dev/null
+++ b/src/lib/gssapi/krb5/set_ccache.c
@@ -0,0 +1,101 @@
+/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/* lib/gssapi/krb5/set_ccache.c */
+/*
+ * Copyright 1999, 2003 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
+ *
+ * Export of this software from the United States of America may
+ *   require a specific license from the United States Government.
+ *   It is the responsibility of any person or organization contemplating
+ *   export to obtain such a license before exporting.
+ *
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of M.I.T. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission.  Furthermore if you modify this software you must label
+ * your software as modified software and not distribute it in such a
+ * fashion that it might be confused with the original M.I.T. software.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose.  It is provided "as is" without express
+ * or implied warranty.
+ */
+
+/*
+ * Set ccache name used by gssapi, and optionally obtain old ccache
+ * name.  Caller should not free returned name.
+ */
+
+#include <string.h>
+#include "gssapiP_krb5.h"
+
+OM_uint32
+gss_krb5int_ccache_name(OM_uint32 *minor_status,
+                        const gss_OID desired_mech,
+                        const gss_OID desired_object,
+                        const gss_buffer_t value)
+{
+    char *old_name = NULL;
+    OM_uint32 err = 0;
+    OM_uint32 minor = 0;
+    char *gss_out_name;
+    struct krb5_gss_ccache_name_req *req;
+
+    err = gss_krb5int_initialize_library();
+    if (err) {
+        *minor_status = err;
+        return GSS_S_FAILURE;
+    }
+
+    assert(value->length == sizeof(*req));
+
+    if (value->length != sizeof(*req))
+        return GSS_S_FAILURE;
+
+    req = (struct krb5_gss_ccache_name_req *)value->value;
+
+    gss_out_name = k5_getspecific(K5_KEY_GSS_KRB5_SET_CCACHE_OLD_NAME);
+
+    if (req->out_name) {
+        const char *tmp_name = NULL;
+
+        if (!err) {
+            kg_get_ccache_name (&err, &tmp_name);
+        }
+        if (!err) {
+            old_name = gss_out_name;
+            gss_out_name = (char *)tmp_name;
+        }
+    }
+    /* If out_name was NULL, we keep the same gss_out_name value, and
+       don't free up any storage (leave old_name NULL).  */
+
+    if (!err)
+        kg_set_ccache_name (&err, req->name);
+
+    minor = k5_setspecific(K5_KEY_GSS_KRB5_SET_CCACHE_OLD_NAME, gss_out_name);
+    if (minor) {
+        /* Um.  Now what?  */
+        if (err == 0) {
+            err = minor;
+        }
+        free(gss_out_name);
+        gss_out_name = NULL;
+    }
+
+    if (!err) {
+        if (req->out_name) {
+            *(req->out_name) = gss_out_name;
+        }
+    }
+
+    if (old_name != NULL) {
+        free (old_name);
+    }
+
+    *minor_status = err;
+    return (*minor_status == 0) ? GSS_S_COMPLETE : GSS_S_FAILURE;
+}